Patent · US Active

Method, apparatus, and computer program for establishing a representation of a spectacle lens edge

US10564446B2 · kind B2 · utility

5Cited by

5References

29Claims

0Family size

Assignees

Carl Zeiss Vision International GmbH · DE
Carl Zeiss AG · DE

Inventors

Claudia Nieuwenhuis · Aalen, DE
Oliver Schwarz · Rainau, DE

Key dates

Filing date	May 21, 2019
Grant date	Feb 18, 2020
Priority date	—
Expiry date	May 21, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/10028
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A computer-implemented method for establishing the representation of the edge of a spectacle lens or of a left spectacle lens and a right spectacle lens for a spectacle wearer is disclosed. The method includes: providing image data relating to the spectacle wearer with a worn spectacle frame; calculating information data derived from the image data; calculating a deterministically optimizable cost function linking the information data with spectacle lens data, wherein the spectacle lens data describe the spatial extent of at least one spectacle lens held in the spectacle frame; and setting a curve of an edge of the spectacle lens or of the left spectacle lens and the right spectacle lens by optimizing the cost function.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.